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Old 14th December 2008, 03:43 PM   #1
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Question help with learning

hi.
i am new to this community.
i am a electrical student by profession specializing in instrumentation and MCUs.
however, i have long since i wanted to get into building amplifiers since i am a audio enthusiast.
but i have no idea how to get about.
i realise that this is probably not the right group to post it but in this forum it seemed like the most likely place to ask..

i would really appreciate it if the more experienced members would help me out in learning the art of designing, debugging and developing a complete amp..
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Old 14th December 2008, 04:39 PM   #2
Mooly is offline Mooly  United Kingdom
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Hi Krish,
Start small Maybe a chip amp to begin. There is nothing like actually getting something to work for the first time. Electronics is a vast subject, sure you can make an amp, but it sounds like you want to do more than that.
Do you have any electronics experience ? You will need some basic test equipment. You really need to be able to make your own PCB's as well, and all this takes time, even professional electronics techs are learning all the time--we never stop learning.
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Old 14th December 2008, 07:49 PM   #3
djoffe is offline djoffe  United States
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Default this excellent book will help

Get a copy of this book and keep it with you...it has all the answers you will need...Depending upon your background, you may find you need some preparation before this book, but it is very well written.
Audio Power Amplifier Design Handbook, Fourth Edition by Douglas Self (Paperback - Sep 5, 2006)
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Old 15th December 2008, 02:03 AM   #4
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i do have hands on experience with working with electronics.
designing my ckts, PCB artwork etc but audio amp designing was out of my realm..

thank you for your help.
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Old 15th December 2008, 02:04 AM   #5
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@djoffe
thank you for the suggestion.
booked my copy on amazon.
i ll probably receive the book in a couple of days..
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Old 15th December 2008, 03:05 AM   #6
jaycee is offline jaycee  United Kingdom
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One area you might want to look at is operational amplifiers. Most modern power amps are basically discrete op-amps. The LM3886 chip amp often suggested is basically a power chip amp. You'll learn a lot by getting familiar with opamps.
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Old 15th December 2008, 03:17 AM   #7
andy_c is offline andy_c  United States
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Good point. This old, but still relevant article by Solomon is a very good reference for what's going on in the classical (non-current-feedback) op-amp.
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Old 15th December 2008, 03:23 AM   #8
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Quote:
By jaycee- You'll learn a lot by getting familiar with opamps
I "steal" all sorts of ideas from op-amps ...current sources,
compensation,etc. All are port gracefully to large power amps.
OS
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Old 15th December 2008, 06:01 AM   #9
lineup is offline lineup  Sweden
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Quote:
Originally posted by andy_c
This old, but still relevant article by Solomon
is a very good reference for what's going on in the classical (non-current-feedback) op-amp.
papers from 1974
could them be something for the modern era
34 years old ... but still younger than me, Lineup
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Old 15th December 2008, 06:03 PM   #10
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thank you..

it has been pretty helpful..


not that i ve achieved much and built my amps yet...
but i ve managed to understand the design of of amp ckts..
thank you all..
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